Home / 90,471.47-124,851.38-50,187.87

Finding the Fourth Proportional to 90,471.47, 124,851.38 and 50,187.87

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Solution

The fourth proportional to 90,471.47, 124,851.38 and 50,187.87 is: 69,259.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,471.47 : 124,851.38 = 50,187.87 : x
  2. Step 2: Convert to fraction form
    90,471.47/124,851.38 = 50,187.87/x
  3. Step 3: Cross multiply
    90,471.47x = 124,851.38 × 50,187.87
  4. Step 4: Simplify right side
    90,471.47x = 6,266,024,577.82
  5. Step 5: Solve for x
    x = 6,266,024,577.82/90,471.47
  6. Step 6: Final answer
    x = 69,259.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.